What is the single wire connection at the rear of a 722.303? Mine is broken.

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Lots of diesel W126s in the past
Current: 1991 Toyota 4Runner with an OM603

Reverse lights or possible the NSS connection

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

On the left hand side of the transmission you should see the reverse lights and NSS connections (as mentioned by Aquenticedge). These are towards the rear of the transmission. On the right hand side there's a single wire that goes to the kick down solenoid.

There is also a vacuum line going to the modulating pressure dashpot...

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

This is the only connection on the rear of the transmission, underneath the tailshaft, and it's held on by a single Philips head screw.

It's not the neutral safety switch connection; that's a big, round, locking connector on the left side (as you view the transmission from the rear). And it's not the vacuum modulator connection.

The reverse lights were working, so I'm certain it's not the reverse light switch.

Can you guys tell me for sure what this connector is? Responses so far have seemed like speculation. Do you have a link to a parts manual?

__________________
Lots of diesel W126s in the past
Current: 1991 Toyota 4Runner with an OM603

Figured it out; It's the hot wire for the kickdown solenoid. Thank you guys.

__________________
Lots of diesel W126s in the past
Current: 1991 Toyota 4Runner with an OM603